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usb cable with thermal protection

A technology for protecting circuits and cables, which can be used in emergency protection circuit devices, components of emergency protection devices, emergency protection devices that automatically disconnect, etc., and can solve the problem of expensive PTC components

Active Publication Date: 2022-04-19
LITTELFUSE INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Although the above application of PTC components in USB cables provides a practical solution for preventing overcurrent and overheating in early low power (e.g., 5-20 watts) generation USB cables, in modern USB Similar applications in -C standard cables present significant challenges
In particular, PTC elements capable of handling 100 watts of power are very large and expensive for practical commercial use in USB cables

Method used

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Embodiment Construction

[0023] A data / power transmission cable with integrated thermal protection according to the present disclosure will be described more fully below with reference to the accompanying drawings in which preferred embodiments of the cable will be given. However, cables may be implemented in different forms, configured to comply with different standards (eg, IEEE standards) and should not be construed as limited to only the set forth embodiments. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will convey the scope of the described cables to those skilled in the art.

[0024] refer to figure 1 , which shows a schematic diagram for illustrating a pin layout of a USB-C data / power transmission cable 10 (hereinafter referred to as "cable 10") according to the present disclosure. According to the USB-C standard, the cable 10 includes a ground wire 12, a high-speed (USB 2.0, 480mbps) data wire 14, a super high-speed + (USB 3.1, 10Gbps) dat...

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Abstract

The invention relates to a USB cable with thermal protection. A cable includes: a power conductor configured to transmit electrical power between a first device and a second device, a first data conductor configured to transmit data between the first device and the second device, and a second a first protection circuit coupled to the data conductor and associated with the first temperature sensing element, the first protection circuit being configured for use when the temperature detected by the first temperature sensing element rises above a predetermined first trip temperature The current flowing through the first data conductor is reduced while the disconnection of the first data conductor indicates a fault condition to the device connected by the cable, whereby the electric power flowing through the power conductor is thus reduced.

Description

[0001] Cross References to Related Applications [0002] This application is a continuation-in-part of U.S. Nonprovisional Patent Application No. 15 / 386,144, filed December 21, 2016, which claims U.S. Provisional Patent Application No. .62 / 404,277, both of which are hereby incorporated by reference in their entirety. technical field [0003] The present disclosure relates generally to the field of circuit protection devices, and more particularly to universal serial bus cables with integrated thermal protection. Background technique [0004] Universal Serial Bus (USB) cables are increasingly being used to power electronic devices in addition to their more traditional role of facilitating data communications. With the recent advent of the USB-C standard, USB cables are now capable of delivering up to 100 watts of power, facilitating high-power applications not previously possible via USB connections. However, it has been observed that such high power delivery can cause ther...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01R13/66H01R13/713
CPCH01R13/665H01R13/6691H01R13/7137H02H3/085H02H3/087H02H5/042H02H7/226H02H5/041G06F1/266G06F2213/3812H02H1/0084G06F2213/0042H02H1/0007G06F13/4068H02H5/04
Inventor B·格鲁波维奇游恭豪
Owner LITTELFUSE INC